1386473386 has 16 divisors (see below), whose sum is σ = 2206974600. Its totient is φ = 650997760.

The previous prime is 1386473371. The next prime is 1386473399. The reversal of 1386473386 is 6833746831.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1367594361 + 18879025 = 36981^2 + 4345^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30145 + ... + 60676.

Almost surely, 2^1386473386 is an apocalyptic number.

1386473386 is a deficient number, since it is larger than the sum of its proper divisors (820501214).

1386473386 is a wasteful number, since it uses less digits than its factorization.

1386473386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91289.

The product of its digits is 1741824, while the sum is 49.

The square root of 1386473386 is about 37235.3781503559. The cubic root of 1386473386 is about 1115.0744012503.

The spelling of 1386473386 in words is "one billion, three hundred eighty-six million, four hundred seventy-three thousand, three hundred eighty-six".